How do you stop icing drying out?

To prevent icing from drying out, cover it with plastic wrap or a damp cloth when not in use. You can also store the icing in an airtight container to maintain moisture. If icing has already started to dry, you can add a few drops of water or corn syrup and mix to restore its consistency. Additionally, working in small batches and only exposing the portion you are using can help keep the icing fresh.